Divergence and Curl (Vector Fields)

Div, Grad, and Curl: Vector Calculus Building Blocks for PDEs [Divergence, Gradient, and Curl]

Calculus 3 Lecture 15.2: How to Find Divergence and Curl of Vector Fields

Vector Operations (2D)

Operations on Vectors

Tutorial 03: Vector Operation in Linear Algebra | Vector Addition Subtraction Scalar Multiplication

The Vector Cross Product

Vector dot product and vector length | Vectors and spaces | Linear Algebra | Khan Academy